from tkinter import *
x=int(input())
y=int(input())
n=int(input())

coords=[0,0,10,0,10,10,20,10,20,0,30,0,30,10,30,20,20,20,10,20,0,20]

root=Tk()
root.title("ИТ марафон")
root.geometry("500x500")








if n==0 and x>=0 and x<=500 and y>=0 and y<=500:
    pass
else:
    if n>0 and 0*n+x>=0 and 0*n+y>=0 and 20*n+x<=500 and 20*n+y<=500:
        pass
    else:
        if n<0 and 20*n+x>=0  and 20*n+y>=0 and 0*n+x<=500 and 0*n+y<=500:
            pass
        else:
            print ("Размер фигуры превышает максимальный размер поля")
            exit()
            




canvas=Canvas(bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords[0]*n+x, coords[1]*n+y,
                       coords[2]*n+x, coords[3]*n+y,
                       coords[4]*n+x,  coords[5]*n+y,
                       coords[6]*n+x,  coords[7]*n+y,
                       coords[8]*n+x,  coords[9]*n+y,
                       coords[10]*n+x,  coords[11]*n+y,
                       coords[12]*n+x,  coords[13]*n+y,
                       coords[14]*n+x,  coords[15]*n+y,
                       coords[16]*n+x,  coords[17]*n+y,
                       coords[18]*n+x,  coords[19]*n+y,
                      coords[20]*n+x,  coords[20]*n+y) 
root.mainloop()#Долгалева Мария
